Improvement in porcelain bowls for water-closets



2 Sheets-Sheet 1.

C. HARRISON. Porcelain Bowl for Water-Closets.

No. 196,798. Patented Nov. 6, i877.

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No. 196,798. Patented Nov. 6, 1877.

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2`Sheets-Sheet 2.

UNITED .STATES PATENT OFFICE.

CHARLES HARRISON, OF NEW YORK, N. Y.

Specification forming part of Letters Patent No. 196,798, dated November 6, 1877; application led l June 4, -1877.

To all whom 'it may concern:

Be it known that I, CHARLES HARRISON, of the city and State of New York, have invented a certain ImprovementinWater-Gloset Bowls, of which the following is a specification:

My improvement relates to that class of water-closet bowls in which the shell. of the bowl inclines inwardly toward the soil-openin g. In this class of bowls the stream of water for washing the bowl, which is usually injected through a horizontal pipe, is thrown upward by centrifugal action 5 and if the head of water is very great, lit is liable to overflow, owing toA the upward deflection of the stream by the inclined circular surface of the bowl.

My invention consists in providing such a bowl with a swelled front, whereby the tendency of the stream of water to rise is diminished after it has passed about half-way around and the rearward location of the soil-opening are retained.

The accompanyingdrawin gs exhibit a watercloset bowl having the shape Ihave described, and also having' awide external flange, to answer the purpose` of a drip-tray. The` driptray, however, is not a part of this invention.

The drawings are as follows: Figure l is a top view of the bowl; Fig. 2, a side view, showing the water-arm; Fig. 3, a vertical section from front to rear through the line a: on Fig. l; and Fig. 4, a transverse vertical section through the line y y on Fig. 1.

Referring to the drawings, it will be seen that the bowl Ais formed with an outward swell, B, on the front side F. The ordinary shape of the front part of the bowl is indicated by the -dotted lines a a on Figs. l and 3.

The bowl has the usual lprojecting shoulder G, by which it is supported upon the trunk of the closet; It will be seen that the inner side injected through the water arm or pipe E, A I

which is directed in a slightly downward direction -over the rear portion ofthe interior surface of the bowl by the nozzle e. The bowl is provided with the usual inner curved flange at the top.

It will be seen that a stream of water injected into the bowl is deected upward by the inclined circular surface, -upon which it strikes; but when the stream gets around to the side opposite the nozzle or water-arm the interior of the bowl begins to present less resistance to it, because, owing to the swelled front, that portionof the bowl has a less sharp curve. rEhe stream, therefore, at that point,

begins to yield to the influence of gravity, and

spreads itself` over the front part of the bowl without rising farther.

I do not claim a water-closet bowl provided with an inward and outward ange, nor do I claim, broadly, an oval bowl; but 4 What I claim as my invention is- An earthenware or porcelain water-closet bowl provided with the swelled frontB, and having the whole of its inner surface inclined in greater or less degrees toward the soilopening, substantially as shown and described.

OHAS. HARRISON. 

